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&#x5728;go-zero&#xFF0C;&#x6211;&#x4EEC;&#x4F7F;&#x7528;zrpc&#x6765;&#x8FDB;&#x884C;&#x670D;&#x52A1;&#x95F4;&#x7684;&#x901A;&#x4FE1;&#xFF0C;zrpc&#x662F;&#x57FA;&#x4E8E;grpc&#x3002;</p>
<h2 id="&#x573A;&#x666F;">&#x573A;&#x666F;</h2>
<p>&#x5728;&#x524D;&#x9762;&#x6211;&#x4EEC;&#x5B8C;&#x5584;&#x4E86;&#x5BF9;&#x7528;&#x6237;&#x8FDB;&#x884C;&#x767B;&#x5F55;&#xFF0C;&#x7528;&#x6237;&#x67E5;&#x8BE2;&#x56FE;&#x4E66;&#x7B49;&#x63A5;&#x53E3;&#x534F;&#x8BAE;&#xFF0C;&#x4F46;&#x662F;&#x7528;&#x6237;&#x5728;&#x67E5;&#x8BE2;&#x56FE;&#x4E66;&#x65F6;&#x6CA1;&#x6709;&#x505A;&#x4EFB;&#x4F55;&#x7528;&#x6237;&#x6821;&#x9A8C;&#xFF0C;&#x5982;&#x679C;&#x5F53;&#x524D;&#x7528;&#x6237;&#x662F;&#x4E00;&#x4E2A;&#x4E0D;&#x5B58;&#x5728;&#x7684;&#x7528;&#x6237;&#x5219;&#x6211;&#x4EEC;&#x4E0D;&#x5141;&#x8BB8;&#x5176;&#x67E5;&#x9605;&#x56FE;&#x4E66;&#x4FE1;&#x606F;&#xFF0C;
&#x4ECE;&#x4E0A;&#x6587;&#x4FE1;&#x606F;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x5F97;&#x77E5;&#xFF0C;&#x9700;&#x8981;user&#x670D;&#x52A1;&#x63D0;&#x4F9B;&#x4E00;&#x4E2A;&#x65B9;&#x6CD5;&#x6765;&#x83B7;&#x53D6;&#x7528;&#x6237;&#x4FE1;&#x606F;&#x4F9B;search&#x670D;&#x52A1;&#x4F7F;&#x7528;&#xFF0C;&#x56E0;&#x6B64;&#x6211;&#x4EEC;&#x5C31;&#x9700;&#x8981;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;user rpc&#x670D;&#x52A1;&#xFF0C;&#x5E76;&#x63D0;&#x4F9B;&#x4E00;&#x4E2A;getUser&#x65B9;&#x6CD5;&#x3002;</p>
<h2 id="rpc&#x670D;&#x52A1;&#x7F16;&#x5199;">rpc&#x670D;&#x52A1;&#x7F16;&#x5199;</h2>
<ul>
<li><p>&#x7F16;&#x8BD1;proto&#x6587;&#x4EF6;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> service/user/cmd/rpc/user.proto
</code></pre>
<pre class="language-"><code class="lang-protobuf">  <span class="token keyword">syntax</span> <span class="token operator">=</span> <span class="token string">&quot;proto3&quot;</span><span class="token punctuation">;</span>

  <span class="token keyword">package</span> user<span class="token punctuation">;</span>

  <span class="token keyword">message</span> <span class="token class-name">IdReq</span><span class="token punctuation">{</span>
    <span class="token builtin">int64</span> id <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>

  <span class="token keyword">message</span> <span class="token class-name">UserInfoReply</span><span class="token punctuation">{</span>
    <span class="token builtin">int64</span> id <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">;</span>
    <span class="token builtin">string</span> name <span class="token operator">=</span> <span class="token number">2</span><span class="token punctuation">;</span>
    <span class="token builtin">string</span> number <span class="token operator">=</span> <span class="token number">3</span><span class="token punctuation">;</span>
    <span class="token builtin">string</span> gender <span class="token operator">=</span> <span class="token number">4</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>

  <span class="token keyword">service</span> <span class="token class-name">user</span> <span class="token punctuation">{</span>
    <span class="token keyword">rpc</span> <span class="token function">getUser</span><span class="token punctuation">(</span><span class="token class-name">IdReq</span><span class="token punctuation">)</span> <span class="token keyword">returns</span><span class="token punctuation">(</span><span class="token class-name">UserInfoReply</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
</code></pre>
<ul>
<li>&#x751F;&#x6210;rpc&#x670D;&#x52A1;&#x4EE3;&#x7801;<pre class="language-"><code class="lang-shell">$ <span class="token builtin class-name">cd</span> service/user/cmd/rpc
$ goctl rpc proto -src user.proto -dir <span class="token builtin class-name">.</span>
</code></pre>
</li>
</ul>
</li>
<li><p>&#x6DFB;&#x52A0;&#x914D;&#x7F6E;&#x53CA;&#x5B8C;&#x5584;yaml&#x914D;&#x7F6E;&#x9879;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> service/user/cmd/rpc/internal/config/config.go
</code></pre>
<pre class="language-"><code class="lang-go">  <span class="token keyword">type</span> Config <span class="token keyword">struct</span> <span class="token punctuation">{</span>
      zrpc<span class="token punctuation">.</span>RpcServerConf
      Mysql <span class="token keyword">struct</span> <span class="token punctuation">{</span>
          DataSource <span class="token builtin">string</span>
      <span class="token punctuation">}</span>
      CacheRedis cache<span class="token punctuation">.</span>CacheConf
  <span class="token punctuation">}</span>
</code></pre>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> /service/user/cmd/rpc/etc/user.yaml
</code></pre>
<pre class="language-"><code class="lang-yaml">  <span class="token key atrule">Name</span><span class="token punctuation">:</span> user.rpc
  <span class="token key atrule">ListenOn</span><span class="token punctuation">:</span> 127.0.0.1<span class="token punctuation">:</span><span class="token number">8080</span>
  <span class="token key atrule">Etcd</span><span class="token punctuation">:</span>
  <span class="token key atrule">Hosts</span><span class="token punctuation">:</span>
  <span class="token punctuation">-</span> $etcdHost
    <span class="token key atrule">Key</span><span class="token punctuation">:</span> user.rpc
  <span class="token key atrule">Mysql</span><span class="token punctuation">:</span>
  <span class="token key atrule">DataSource</span><span class="token punctuation">:</span> $user<span class="token punctuation">:</span>$password@tcp($url)/$db<span class="token punctuation">?</span>charset=utf8mb4<span class="token important">&amp;parseTime=true&amp;loc=Asia%2FShanghai</span>
  <span class="token key atrule">CacheRedis</span><span class="token punctuation">:</span>
  <span class="token punctuation">-</span> <span class="token key atrule">Host</span><span class="token punctuation">:</span> $host
    <span class="token key atrule">Pass</span><span class="token punctuation">:</span> $pass
    <span class="token key atrule">Type</span><span class="token punctuation">:</span> node
</code></pre>
<blockquote>
<p>[!TIP]
$user: mysql&#x6570;&#x636E;&#x5E93;user</p>
<p>$password: mysql&#x6570;&#x636E;&#x5E93;&#x5BC6;&#x7801;</p>
<p>$url: mysql&#x6570;&#x636E;&#x5E93;&#x8FDE;&#x63A5;&#x5730;&#x5740;</p>
<p>$db: mysql&#x6570;&#x636E;&#x5E93;db&#x540D;&#x79F0;&#xFF0C;&#x5373;user&#x8868;&#x6240;&#x5728;database</p>
<p>$host: redis&#x8FDE;&#x63A5;&#x5730;&#x5740; &#x683C;&#x5F0F;&#xFF1A;ip:port&#xFF0C;&#x5982;:127.0.0.1:6379</p>
<p>$pass: redis&#x5BC6;&#x7801;</p>
<p>$etcdHost: etcd&#x8FDE;&#x63A5;&#x5730;&#x5740;&#xFF0C;&#x683C;&#x5F0F;&#xFF1A;ip:port&#xFF0C;&#x5982;&#xFF1A; 127.0.0.1:2379</p>
<p>&#x66F4;&#x591A;&#x914D;&#x7F6E;&#x4FE1;&#x606F;&#xFF0C;&#x8BF7;&#x53C2;&#x8003;<a href="rpc-config.html">rpc&#x914D;&#x7F6E;&#x4ECB;&#x7ECD;</a></p>
</blockquote>
</li>
<li><p>&#x6DFB;&#x52A0;&#x8D44;&#x6E90;&#x4F9D;&#x8D56;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> service/user/cmd/rpc/internal/svc/servicecontext.go
</code></pre>
<pre class="language-"><code class="lang-go">  <span class="token keyword">type</span> ServiceContext <span class="token keyword">struct</span> <span class="token punctuation">{</span>
      Config    config<span class="token punctuation">.</span>Config
      UserModel model<span class="token punctuation">.</span>UserModel
  <span class="token punctuation">}</span>

  <span class="token keyword">func</span> <span class="token function">NewServiceContext</span><span class="token punctuation">(</span>c config<span class="token punctuation">.</span>Config<span class="token punctuation">)</span> <span class="token operator">*</span>ServiceContext <span class="token punctuation">{</span>
      conn <span class="token operator">:=</span> sqlx<span class="token punctuation">.</span><span class="token function">NewMysql</span><span class="token punctuation">(</span>c<span class="token punctuation">.</span>Mysql<span class="token punctuation">.</span>DataSource<span class="token punctuation">)</span>
      <span class="token keyword">return</span> <span class="token operator">&amp;</span>ServiceContext<span class="token punctuation">{</span>
          Config<span class="token punctuation">:</span> c<span class="token punctuation">,</span>
          UserModel<span class="token punctuation">:</span> model<span class="token punctuation">.</span><span class="token function">NewUserModel</span><span class="token punctuation">(</span>conn<span class="token punctuation">,</span> c<span class="token punctuation">.</span>CacheRedis<span class="token punctuation">)</span><span class="token punctuation">,</span>
      <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
</code></pre>
</li>
<li><p>&#x6DFB;&#x52A0;rpc&#x903B;&#x8F91;</p>
<pre class="language-"><code class="lang-shell">  $ service/user/cmd/rpc/internal/logic/getuserlogic.go
</code></pre>
<pre class="language-"><code class="lang-go">  <span class="token keyword">func</span> <span class="token punctuation">(</span>l <span class="token operator">*</span>GetUserLogic<span class="token punctuation">)</span> <span class="token function">GetUser</span><span class="token punctuation">(</span>in <span class="token operator">*</span>user<span class="token punctuation">.</span>IdReq<span class="token punctuation">)</span> <span class="token punctuation">(</span><span class="token operator">*</span>user<span class="token punctuation">.</span>UserInfoReply<span class="token punctuation">,</span> <span class="token builtin">error</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      one<span class="token punctuation">,</span> err <span class="token operator">:=</span> l<span class="token punctuation">.</span>svcCtx<span class="token punctuation">.</span>UserModel<span class="token punctuation">.</span><span class="token function">FindOne</span><span class="token punctuation">(</span>in<span class="token punctuation">.</span>Id<span class="token punctuation">)</span>
      <span class="token keyword">if</span> err <span class="token operator">!=</span> <span class="token boolean">nil</span> <span class="token punctuation">{</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> err
      <span class="token punctuation">}</span>

      <span class="token keyword">return</span> <span class="token operator">&amp;</span>user<span class="token punctuation">.</span>UserInfoReply<span class="token punctuation">{</span>
          Id<span class="token punctuation">:</span>     one<span class="token punctuation">.</span>Id<span class="token punctuation">,</span>
          Name<span class="token punctuation">:</span>   one<span class="token punctuation">.</span>Name<span class="token punctuation">,</span>
          Number<span class="token punctuation">:</span> one<span class="token punctuation">.</span>Number<span class="token punctuation">,</span>
          Gender<span class="token punctuation">:</span> one<span class="token punctuation">.</span>Gender<span class="token punctuation">,</span>
      <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token boolean">nil</span>
  <span class="token punctuation">}</span>
</code></pre>
</li>
</ul>
<h2 id="&#x4F7F;&#x7528;rpc">&#x4F7F;&#x7528;rpc</h2>
<p>&#x63A5;&#x4E0B;&#x6765;&#x6211;&#x4EEC;&#x5728;search&#x670D;&#x52A1;&#x4E2D;&#x8C03;&#x7528;user rpc</p>
<ul>
<li>&#x6DFB;&#x52A0;UserRpc&#x914D;&#x7F6E;&#x53CA;yaml&#x914D;&#x7F6E;&#x9879;<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> service/search/cmd/api/internal/config/config.go
</code></pre>
<pre class="language-"><code class="lang-go">  <span class="token keyword">type</span> Config <span class="token keyword">struct</span> <span class="token punctuation">{</span>
      rest<span class="token punctuation">.</span>RestConf
      Auth <span class="token keyword">struct</span> <span class="token punctuation">{</span>
          AccessSecret <span class="token builtin">string</span>
          AccessExpire <span class="token builtin">int64</span>
      <span class="token punctuation">}</span>
      UserRpc zrpc<span class="token punctuation">.</span>RpcClientConf
  <span class="token punctuation">}</span>
</code></pre>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> service/search/cmd/api/etc/search-api.yaml
</code></pre>
<pre class="language-"><code class="lang-yaml">  <span class="token key atrule">Name</span><span class="token punctuation">:</span> search<span class="token punctuation">-</span>api
  <span class="token key atrule">Host</span><span class="token punctuation">:</span> 0.0.0.0
  <span class="token key atrule">Port</span><span class="token punctuation">:</span> <span class="token number">8889</span>
  <span class="token key atrule">Auth</span><span class="token punctuation">:</span>
    <span class="token key atrule">AccessSecret</span><span class="token punctuation">:</span> $AccessSecret
    <span class="token key atrule">AccessExpire</span><span class="token punctuation">:</span> $AccessExpire
  <span class="token key atrule">UserRpc</span><span class="token punctuation">:</span>
    <span class="token key atrule">Etcd</span><span class="token punctuation">:</span>
      <span class="token key atrule">Hosts</span><span class="token punctuation">:</span>
        <span class="token punctuation">-</span> $etcdHost
      <span class="token key atrule">Key</span><span class="token punctuation">:</span> user.rpc
</code></pre>
<blockquote>
<p>[!TIP]
$AccessSecret&#xFF1A;&#x8FD9;&#x4E2A;&#x503C;&#x5FC5;&#x987B;&#x8981;&#x548C;user api&#x4E2D;&#x58F0;&#x660E;&#x7684;&#x4E00;&#x81F4;&#x3002;</p>
<p>$AccessExpire: &#x6709;&#x6548;&#x671F;</p>
<p>$etcdHost&#xFF1A; etcd&#x8FDE;&#x63A5;&#x5730;&#x5740;</p>
<p>etcd&#x4E2D;&#x7684;<code>Key</code>&#x5FC5;&#x987B;&#x8981;&#x548C;user rpc&#x670D;&#x52A1;&#x914D;&#x7F6E;&#x4E2D;Key&#x4E00;&#x81F4;</p>
</blockquote>
</li>
<li><p>&#x6DFB;&#x52A0;&#x4F9D;&#x8D56;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> service/search/cmd/api/internal/svc/servicecontext.go
</code></pre>
<pre class="language-"><code class="lang-go">  <span class="token keyword">type</span> ServiceContext <span class="token keyword">struct</span> <span class="token punctuation">{</span>
      Config  config<span class="token punctuation">.</span>Config
      Example rest<span class="token punctuation">.</span>Middleware
      UserRpc userclient<span class="token punctuation">.</span>User
  <span class="token punctuation">}</span>

  <span class="token keyword">func</span> <span class="token function">NewServiceContext</span><span class="token punctuation">(</span>c config<span class="token punctuation">.</span>Config<span class="token punctuation">)</span> <span class="token operator">*</span>ServiceContext <span class="token punctuation">{</span>
      <span class="token keyword">return</span> <span class="token operator">&amp;</span>ServiceContext<span class="token punctuation">{</span>
          Config<span class="token punctuation">:</span>  c<span class="token punctuation">,</span>
          Example<span class="token punctuation">:</span> middleware<span class="token punctuation">.</span><span class="token function">NewExampleMiddleware</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span>Handle<span class="token punctuation">,</span>
          UserRpc<span class="token punctuation">:</span> userclient<span class="token punctuation">.</span><span class="token function">NewUser</span><span class="token punctuation">(</span>zrpc<span class="token punctuation">.</span><span class="token function">MustNewClient</span><span class="token punctuation">(</span>c<span class="token punctuation">.</span>UserRpc<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
      <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
</code></pre>
</li>
<li><p>&#x8865;&#x5145;&#x903B;&#x8F91;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> /service/search/cmd/api/internal/logic/searchlogic.go
</code></pre>
<pre class="language-"><code class="lang-go">  <span class="token keyword">func</span> <span class="token punctuation">(</span>l <span class="token operator">*</span>SearchLogic<span class="token punctuation">)</span> <span class="token function">Search</span><span class="token punctuation">(</span>req types<span class="token punctuation">.</span>SearchReq<span class="token punctuation">)</span> <span class="token punctuation">(</span><span class="token operator">*</span>types<span class="token punctuation">.</span>SearchReply<span class="token punctuation">,</span> <span class="token builtin">error</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      userIdNumber <span class="token operator">:=</span> json<span class="token punctuation">.</span><span class="token function">Number</span><span class="token punctuation">(</span>fmt<span class="token punctuation">.</span><span class="token function">Sprintf</span><span class="token punctuation">(</span><span class="token string">&quot;%v&quot;</span><span class="token punctuation">,</span> l<span class="token punctuation">.</span>ctx<span class="token punctuation">.</span><span class="token function">Value</span><span class="token punctuation">(</span><span class="token string">&quot;userId&quot;</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
      logx<span class="token punctuation">.</span><span class="token function">Infof</span><span class="token punctuation">(</span><span class="token string">&quot;userId: %s&quot;</span><span class="token punctuation">,</span> userIdNumber<span class="token punctuation">)</span>
      userId<span class="token punctuation">,</span> err <span class="token operator">:=</span> userIdNumber<span class="token punctuation">.</span><span class="token function">Int64</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
      <span class="token keyword">if</span> err <span class="token operator">!=</span> <span class="token boolean">nil</span> <span class="token punctuation">{</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> err
      <span class="token punctuation">}</span>

      <span class="token comment">// &#x4F7F;&#x7528;user rpc</span>
      <span class="token boolean">_</span><span class="token punctuation">,</span> err <span class="token operator">=</span> l<span class="token punctuation">.</span>svcCtx<span class="token punctuation">.</span>UserRpc<span class="token punctuation">.</span><span class="token function">GetUser</span><span class="token punctuation">(</span>l<span class="token punctuation">.</span>ctx<span class="token punctuation">,</span> <span class="token operator">&amp;</span>userclient<span class="token punctuation">.</span>IdReq<span class="token punctuation">{</span>
          Id<span class="token punctuation">:</span> userId<span class="token punctuation">,</span>
      <span class="token punctuation">}</span><span class="token punctuation">)</span>
      <span class="token keyword">if</span> err <span class="token operator">!=</span> <span class="token boolean">nil</span> <span class="token punctuation">{</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> err
      <span class="token punctuation">}</span>

      <span class="token keyword">return</span> <span class="token operator">&amp;</span>types<span class="token punctuation">.</span>SearchReply<span class="token punctuation">{</span>
          Name<span class="token punctuation">:</span>  req<span class="token punctuation">.</span>Name<span class="token punctuation">,</span>
          Count<span class="token punctuation">:</span> <span class="token number">100</span><span class="token punctuation">,</span>
      <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token boolean">nil</span>
  <span class="token punctuation">}</span>
</code></pre>
<h2 id="&#x542F;&#x52A8;&#x5E76;&#x9A8C;&#x8BC1;&#x670D;&#x52A1;">&#x542F;&#x52A8;&#x5E76;&#x9A8C;&#x8BC1;&#x670D;&#x52A1;</h2>
</li>
<li>&#x542F;&#x52A8;etcd&#x3001;redis&#x3001;mysql</li>
<li>&#x542F;&#x52A8;user rpc<pre class="language-"><code class="lang-shell">  $ <span class="token builtin class-name">cd</span> /service/user/cmd/rpc
  $ go run user.go -f etc/user.yaml
</code></pre>
<pre class="language-"><code class="lang-text">  Starting rpc server at 127.0.0.1:8080...
</code></pre>
</li>
<li><p>&#x542F;&#x52A8;search api</p>
<pre class="language-"><code class="lang-shell">$ <span class="token builtin class-name">cd</span> service/search/cmd/api
$ go run search.go -f etc/search-api.yaml
</code></pre>
</li>
<li><p>&#x9A8C;&#x8BC1;&#x670D;&#x52A1;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">curl</span> -i -X GET <span class="token punctuation">\</span>
    <span class="token string">&apos;http://127.0.0.1:8889/search/do?name=%E8%A5%BF%E6%B8%B8%E8%AE%B0&apos;</span> <span class="token punctuation">\</span>
    -H <span class="token string">&apos;authorization: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2MTI4NjcwNzQsImlhdCI6MTYxMjc4MDY3NCwidXNlcklkIjoxfQ.JKa83g9BlEW84IiCXFGwP2aSd0xF3tMnxrOzVebbt80&apos;</span>
</code></pre>
<pre class="language-"><code class="lang-text">  HTTP/1.1 200 OK
  Content
  -Type: application/json
  Date: Tue, 09 Feb 2021 06:05:52 GMT
  Content-Length: 32

  {&quot;name&quot;:&quot;&#x897F;&#x6E38;&#x8BB0;&quot;,&quot;count&quot;:100}
</code></pre>
</li>
</ul>
<h1 id="&#x731C;&#x4F60;&#x60F3;&#x770B;">&#x731C;&#x4F60;&#x60F3;&#x770B;</h1>
<ul>
<li><a href="rpc-config.html">rpc&#x914D;&#x7F6E;</a></li>
<li><a href="rpc-dir.html">rpc&#x670D;&#x52A1;&#x76EE;&#x5F55;</a></li>
<li><a href="goctl-rpc.html">goctl rpc&#x547D;&#x4EE4;</a></li>
</ul>
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<script src="./javascript/gitalk.js"></script>
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